Unmentioned in the article is what percentage of those refugees had left prior to 2003.

This is hard to pin down--a UNHCR report only says "a significant proportion."

However, the graph in that paper, the one in the middle of the second page on numbers of Iraqi asylum-seekers in industrialized nations, might give at least a clue on trends.

The table on the same page indicates historical resettlement trends in industrialized nations. Might be useful to add all those columns horizontally and see who comes out on top over the past ten years or so.

Don't let journalism school grads do your thinking for you.